ERRATA FOR VOL. XVI. 
Page - line 13 aa top, a principal read principle. 
botto do. 
se os ‘ i: from top, for light read shah: 
“2 218, * 10 from top, for give read gave 
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ADDITION. 
In Dr. Hare’s process for weighing gases, page 294, line 20, after gas, reaé, 
If the gas be heavier than air, — must add the weight, necessary to restore 
. the equilibrium to 30.5 a nd the sum will be the weight of one hun- 
dred cubic bie of th e gas. 
The editor wishes it to be pmo that the genuineness of Mr. 
ter’s imitation of the Saratoga waters, rests eexrtgemlan! upon his own eather: 
ty, no examination of the Bey having been mad i 
